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PS1 Spins twice - doesn't recognize any discs


New member
Original poster
Apr 15, 2022
Hi! Model PS1 SCPH 9001 doesn't recognize discs inserted:

  • PSX starts up and goes to "Main Menu" screen
  • When closing the CD door the cd spins very slowly twice
  • The laser is trying to focus (moves up and down)
  • Laser diode seems to work but is weak
  • Unit doesn't detect any disc has been inserted - just stays at main menu screen


- Laser voltage (measured at trim pot on laser assembly) now at 6 mV. Used to be at 12 mV.

Video 1. https://www.dropbox.com/s/dseu9ld40uds8 ... 1.mp4?dl=0
Video 2. https://www.dropbox.com/s/mnkyiwnyq8feo ... 1.mp4?dl=0

Thankful for help!

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